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JSON to TypeScript

Generate TypeScript interfaces from JSON.

Runs locally in your browser. Your data is never uploaded.

What is the JSON to TypeScript?

Generate TypeScript interfaces from JSON. The JSON to TypeScript is a free online tool that works instantly in your browser — no installation, no signup and nothing to upload. It sits alongside other JSON & Data tools on DevNibble such as JSON Formatter, JSON Validator, JSON Minifier.

How to use the JSON to TypeScript

  1. Paste the source data into the input.
  2. The converted output appears instantly.
  3. Copy or download the result.

Features

  • Runs 100% in your browser — your data is never uploaded or stored.
  • Free forever, with no account, no ads and no tracking.
  • Copy or download your result in one click.
  • Fast and responsive on desktop, tablet and mobile.

Frequently asked questions

Is the JSON to TypeScript free to use?

Yes — JSON to TypeScript is completely free with no sign-up, no ads and no limit on how many times you can use it.

Is my data private when I use the JSON to TypeScript?

Everything happens locally in your browser. Your input is never sent to a server, which makes JSON to TypeScript safe to use with private or sensitive data.

How do I use the JSON to TypeScript?

Enter your input on the left and the converted result is generated automatically — no button to press.

Do I need to install anything to use the JSON to TypeScript?

No installation and no account required — JSON to TypeScript runs entirely in your web browser on desktop and mobile. Generate TypeScript interfaces from JSON.